Furnace



Dec. 8, 1925. 1.565.048

F. s. BlTGooD v FUHNAGE Filed April 13, 1925 2 SheetsfSheet 1 jvc/enfery Dec. 8.19.25.

F. S. BITGOOD ,FURNACE Filed-April 15 2 sheets-sheet 2 Zad @f- PatentedDec. 8, 1925. UNITED STATES PiiTEN'llV 'Ol-""1:IPC.i4V

FREDERICK s; Binocoli, 'or' Los ANGELES", CALIRNIA.

remmen.

Application ldl April 1.3, 1925. Serial No. 22,709.

To all whom it may concev -nseries forming an iron lioor from the innerBeitknown that I, Femmine/KS. Brrsoom face ofy the wall l to the innerface of the a. citizen of. the United `States, residing at wall 2. LosAngeles, in. the county of Los Angeles Openings 7 are formed through thechanand State ofGalifornia,y have invented new nel bars 6. at thetransverse centers and and useful Improvements in Furnaces, of evenlyspaced apart and forming longitudir which the following' is aspecilication. A nal and transverse rowsras .shown in Fig; 2. Thisinvention relates to gas and oil The gas pipe 8 feeds the longitudinalrows burner furnaces and consists of the novel 9 and 10. The gas pipelll feedsthe long-rV 10 features herein shown, described land claimed.Specifically the' invention rela-tes principally to the gas burnerconstruction. An object is to make a gas burner confeeds-thelongitudinal rows andl.

Referringl to Figs. 3 andl 4,I crosses I7 are .incorporated into thegas4 pipes 1l', and

stralction for a boiler setting or the like and' bIIlGheS 18 and 19'extend inoppositc directions, from the ycrosses 17. Caps and 2l are.fixed upon the endsv of the branches 13 and 1-9, and. haveV orifices 22'and 23 in vertical7alinement with the centers ofthe-opening;

'lhe cast iron tubes 24V and 25. have flanges 26r and. upon. their upperends and notches 28 and 29 in their lower end-s. The cast iron tubes 24Vand 251v are'insertedl downwardly through. the open-ing 7 until therflan-ges- 15 in. which a very high degree of' heat may be maintainedwithoutinjury to the burners.

Specifically an object is to make agas burner in which the lower partofthe mixY` ing chamber isa cast iron tube and thek up 20 per part'.arefractory sleeve having an opening in line with the cast iron tube,the-r re fractory sleeve being a square block. cast of lireproofmaterial, such as fire clay burned in a kiln.

tudinal rows l2 and 13 and the gasspipe' 114 25 Other objectsandadvantages will appear 26 ail-fl' 27 engage the Webs 30 and 31 of fromthe drawings and specification. The 15118v (11121111191 bl 6 md thebranches l8-l drawings illustrate the invention. lllfl lnflpass into thenotches 28 and 29 as Figure 1 is a, flagn'lentapy, Vertical, longi..SlIOWIl. The OUCQS 22 and, LFG di] llll` tudn] Sectional detail of wfurnace- @my centers of the tubes 24 and 25 and thek tubes bodying theprinciples of my invention, the view being taken on the line l-l ofFigs. 2 and 3, and looking in the direction indicated bythe arrows.

Fig. 2 is a fragmentary horizontal sect-ion on the line 2*2 of Fig. land looking downwardly as indicated by the arrow.

Fig. 3 is an enlarged fragmentary sectional detail on the' line .3f-3 ofFigs. l and 2.

Fig. 4 is an enlarged fragmentary sectional detail on the line 4 4 ofFig. 3.

The details of construction and operation are as follows: n

The furnace has brick or concrete sideV walls land 2, an I beam 3`connects the side Walls l and 2 near the fro Vt anda simi-V lar I beam 4connects the `side walls at the rear of the gas burner. An angle iron.is mounted below the I, beani 3.A Channel bars- 6 have their sideflanges cutaway and the.. channel bars are. turned with the sideliaiiges downwardly and mounted nponthe I bea-m4 and angle iron 5ldngitiidinalof the furnace, parallel with inner facesof v the wallsland 2. J There is a series of channel irons'y 6 fitting together sideby side as shown in Fig. 3, the

24 and 25 form thelower parts ofthe mixing chamber of the burners.

SquareI blocks 32 and 33 are formed of resuitable fire clayor the likeand have recesses 34 and 35 in their lower faces andvertical openings 36and. 37 in their centers. The recesses 34 and 35 lit the flanges 26 yand27 -36 and 37 register with thc openings 38 and 39 through the tubes 24and 25" 'and form the upper. parts; off the mixing chambers of theburners. y Y l After vthe blocks 32 and have been properly placed uponthe platform forined by the channels 6, suitable plaster 40 isinsertedin the crevices between the blocks to make a lsolid mass. Spacing blocks4l, 42` and 43 are1 placed. upon the blocks 32 and, 33, and sjfracedAaway frolnthe epenin'gs 36 and 37 and baillelblocks 44 and 4.5 .areplaced upon the blocks' 4l, 42 and directly' across the openings `se and3 7 se that-the; gas; and

ings-,316 alla, a7 win strike the baffles ciy and 45 and spread and passupwardly through the spaces 4K6 and 47 between the baties.

fractory material, that is they are cast of to hold the blocks in place,and the openings Haine passingnpwardly threughjtheA epenim neeacas rIheconstruction above set up is repeated over and over throughout thelength of the gas pipe 8 and throughout the lengths of the gas pipe 1land 14, thus producing a comparatively large bank of burners as requiredin a boiler setting or the like, the burners being on a horizontal planeand the fire from the burners discharging upwardly into the combustionchamber 4S from a horizontal plane 49. The bank of burners is heldelevated above the bottom of the furnace and air is supplied to theburners through the adjustable door 5l.

In Fig. l I have shown a combination oil burning furnace and gas burningfurnace, although it should be understood that the oil burning featuremay be omitted. When the oil burning feature is used the oil pipe 52 maypass through the front wall of the furnace under the bank of gas burnersto near the back wall 53 and upwardly, and the oil burner 54 mountedupon the upper end of the pipe to discharge forwardly into thecombustion chamber 48. The passage of fresh air to the oil burner 54 maybe regulated by the adjustable door 55 and the further supply of freshair to the combustion chamber 48, thru checkered or perforated floorformed by the bank of gas burners, may be regulated by an adjustabledoor construction 51.

Heretofore in combination oil and gas burners it has been usual to makethe bank of gas burners incline downwardly and backwardly from thefront, and a special feature of my construction consists in making thebank of gas burners on a horizontal plane as shown and described.

Special attention is called to the following features:

The gas combustion or mixing tubes have metal sleeves forming theirlower parts and refractory sleeves forming their upper parts.I-Ieretofore gas burners have been made with all metal mixing tubes orall refractory mixing tubes.

The refractory portion of the burner combustion or mixing tube is madeof a square block in which is cast a round hole. Heretofore refractorymixing tubes have been made round in plan or crosswise. The object inusing square blocks is so that they will tit together and form acontinuous j'ilatform. or bank.

The square blocks are prevented from moving over the metal furnace floorby means of recesses in their lower faces to tit the tops of the ironsleeves.

The baffles over the combustion or mixing tubes are made interlocking toprevent movement of the baffles by expansion and contraction under heatand cold. This interlocking feature of the baflies is shown in the lefthand part of Fig. rilhe corners of the baies are notched and spacingblocks t have corners fitting in these notches. The spacing blocks 56rest upon the blocks 4l, 42 and 43 while the bafes extend across theopenings from one block to another and the spacing blocks serve to holdthe battles from moving laterally relative to the openings.

I consider the horizontal feature of the bank of gas burners important.I-Ieretofore it has been usual to distort the bank of gas burners toaccommodate the use of the oil burner, that is the bank of gas burnerswas made upon an incline plane, highest at the front and lowest at therear.

rIhe furnace is provided. with an adjustable air regulating door for thegas burner system and an entirely independent air regulating door forthe oil burner system.

In my construction I have a separate air inlet for the gas and the oilburners. The pan extending from the I-beam 4 to the front of the furnaceforms a passage for the air through the door 51 to the gas burners,whereas the air to the oil burning furnace passes through the lowermostdamper in the furnace wall.

Various changes may be made without departing from the spirit of myinvention as claimed.

I claim:

l. In a furnace, a bank of gas burners comprising a metal platformhaving a series of vertical openings, metal mixing tube sleeves inserteddownwardly through the platform and having stops to engage the platform,refractory sleeves having recesses in their lower faces to receive theupper ends of the metal sleeves, the refractory sleeves resting upon themetal platform and formed of square blocks approximately fitting to forma ycontinuous bed, and plaster inserted in the crevices between theblocks.

2. In a furnace, a bank of gas burners comprising a metal platformhaving` a series of vertical openings, metal mixing tube sleevesinserted downwardly through the platform and having stops to engage theplatform, refractory sleeves having recesses in their lower faces toreceive the upper ends of the metal sleeves, the refractory sleevesresting upon the metal platform and formed of square blocksapproximately ttiug to form a continuous bed, and plaster inserted inthe creviceS between the blocks. sl'iacing blocks resting upon thesleeve blocks, baille blocks resting upon the spacing blocks crosswiseof the sleeve openings, and spacing blocks between the baffle blocks tohold the baffle blocks in place.

In testimony whereof I have signed mv name to this specification.

FREDERICK S-BI1.`G()OD.

